online resize of ext3 possible?
Stephen C. Tweedie
sct at redhat.com
Mon Apr 19 20:43:32 UTC 2004
On Fri, 2004-04-16 at 17:13, John Stoffel wrote:
> Is it possible to resize an ext3 filesystem while it's online?
Yes and no. Yes: you want the bits at
http://sourceforge.net/projects/ext2resize/ for it. But no, it's still
somewhat experimental --- the kernel bits seem robust for me but the
user-land tools still need a bit of work. For online growth on ext2/3,
you need to prepare space on-disk for the filesystems group descriptor
tables to grow into. The new format for that is only understood by a
patched mke2fs, so you can't "prepare" an existing filesystem for online
growth just yet. And e2fsck can't yet properly prepare errors in that
I've *just* done a release of the kernel patches against 2.6.6-rc1 and
the user-space patches against e2fsprogs-1.35, and you're welcome to try
> looks like resize2fs won't do the trick unless the filesystem is
Correct, resize2fs is offline-only.
> And ext2resize takes one look at the filesystem while it's
> mounted and complains as well, this time about un-supported features.
The current one in CVS works for me --- I've added recognition of
extended attributes to that. A proper release of that is in progress.
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